Not all bonds distribute interest during their lifetime. Some structures might involve no periodic coupon payments reaching the investor’s account, which means there may be no regular cash flow to monitor along the way. Instead, the potential return may arise from the difference between the price paid for the bond and the amount received at maturity.
That, in simple terms, is the idea behind zero coupon bonds. They sit within the wider bond market, and while the structure may look straightforward, they may behave differently from regular interest-paying bonds. Recent market updates in India have also brought these instruments back into focus. SEBI (Securities and Exchange Board of India) has allowed zero-coupon debt securities to be issued at a reduced face value of ₹10,000 under the revised framework, extending an earlier relaxation that was limited to interest-bearing instruments, thereby potentially widening retail participation in corporate bond markets.
What is a zero coupon bond?
Imagine an investment where you do not receive regular interest payouts, but instead get a lump sum at the end. A zero-coupon bond works in a similar way. It is a debt instrument that does not make periodic interest payments. Instead, it is issued at a discount to its face value and redeemed at face value on maturity. The investor’s potential return comes from that difference. There is no regular coupon income and no interim payout. In simple terms, the return is built into the bond’s price.
In the Indian context, these instruments may appear in government-linked or institutional issuances, and in selected corporate bonds. The structure is similar to treasury bills, which are issued at a discount and redeemed at face value. Because there are no interim payouts, such bonds may be considered by investors planning for a specific future goal where a lump sum amount is required.
How do zero coupon bonds work?
A zero-coupon bond is typically purchased at a price lower than its face value. If the bond is held until maturity, the investor receives the face value, and the difference becomes the realised return.
For instance, if a bond has a face value of ₹10,000 and is issued at ₹7,500 for a fixed maturity period, the return comes from the ₹2,500 difference between the purchase price and the amount received at maturity.
Example for illustrative purposes only.
This structure may help explain why bond yields matter. The discount at which the bond trades reflects the potential yield investors may expect for the time remaining until maturity. If market yields move, the present value of that future maturity amount may also change. This may make zero coupon bonds relatively more sensitive to interest-rate changes than regular bonds with interim cash flows.
Types of zero coupon bonds in India
Understanding the types of zero-coupon bonds in India may help investors choose options aligned with their goals:
Government zero-coupon bonds
These are issued by the Government of India and typically carry relatively lower credit risk compared to corporate issuances. Investors may earn returns from the difference between the discounted purchase price and the face value received at maturity.
Treasury bills (T-bills)
Treasury Bills are short-term government securities that function similarly to zero-coupon bonds, as they are issued at a discount and redeemed at face value. They usually have fixed maturities of 91, 182, or 364 days, making them a commonly used option for short-term liquidity management.
Corporate zero-coupon bonds
These are issued by companies and may offer relatively higher potential returns compared to government-backed instruments, depending on the issuer’s credit profile. However, they may also carry higher credit risk, as the repayment depends on the financial strength of the issuing company.
Pricing a zero-coupon bond: the formula
Understanding how a zero-coupon bond is priced may help you see how its returns are built into the purchase price itself. A zero-coupon bond does not pay periodic interest, so its price is calculated by discounting the maturity value back to today using the expected yield.
The standard formulas are:
When calculated annually
Price = Face Value / (1 + r)n
When calculated semi-annually
Face value / (1 + r/2)(2 x n)
Where:
- Face Value = the amount received at maturity
- r = expected rate of return (yield to maturity)
- n = number of years to maturity
For example, If a bond has a face value of ₹10,000, matures in 5 years, and the expected yield is 7%, the price (annual compounding) would be:
Price = 10,000 / (1 + 0.07)5 = ₹7,130
This means an investor may pay around ₹7,130 today to receive ₹10,000 at maturity, with the difference representing the potential return.
Example for illustrative purposes only.
In simple terms, the longer the time to maturity and the higher the expected yield, the lower the bond’s price today may be. Additionally, since there are no interim cash flows, changes in market interest rates may have a more pronounced impact on the bond’s price.
Advantages of investing in zero coupon bonds
These advantages may help you understand how zero-coupon bonds could support specific investment goals:
Predictable maturity value
If held until maturity, the investor knows the amount that may be received upfront, which may support better financial planning.
No reinvestment risk
Since there are no periodic interest payments, investors may not need to worry about reinvesting interim cash flows at uncertain rates.
Potential suitability for goal-based investing
These bonds may suit investors planning for specific future needs, where a lump sum at a defined time is important.
Simple structure
The absence of periodic payouts makes these instruments relatively easy to understand and track over time.
Discounted entry point
As these bonds are issued at a discount, investors may be able to invest a lower amount today for a known future value.
Risks of investing in zero-coupon bonds
These risks may help you better understand the considerations involved before investing in zero-coupon bonds:
No regular income
These bonds do not provide periodic interest payments, which may not suit investors who rely on regular cash flow.
Interest rate sensitivity
Zero-coupon bonds may be more sensitive to interest rate changes, which could lead to higher price fluctuations if sold before maturity.
Liquidity risk
These bonds may not always be easy to sell in the secondary market, especially during periods of low demand or market volatility.
Credit risk
In the case of corporate issuances, returns may depend on the issuer’s ability to repay at maturity.
Inflation risk
Over longer time horizons, inflation may reduce the real value of the amount received at maturity.
Taxation impact
In some cases, tax may be applicable on notional gains even before the investor receives the maturity amount.
Zero coupon bonds vs. regular bonds: Key differences
Understanding how zero-coupon bonds differ from regular bonds may help you choose based on your income needs and investment horizon:
| Parameter | Zero-coupon bonds | Regular bonds |
| Cash flow | These bonds do not pay periodic interest | These bonds pay interest at regular intervals |
| Return source | Returns may come from the price difference at maturity | Returns come from interest and principal repayment |
| Price sensitivity | These bonds may be more sensitive to interest rate changes | These bonds may be less sensitive to rate changes |
| Investment use | They may suit long-term goals requiring a lump sum | They may suit investors seeking regular income |
| Structure | They are issued at a discount and redeemed at face value | They pay coupons and return principal at maturity |
Who should consider investing in zero coupon bonds?
These bonds may be suitable for investors with a defined time horizon and no immediate need for periodic income. They could appeal to people planning for a future goal on a known date, or to investors who might prefer a fixed-income instrument without regular coupon tracking. At the same time, price sensitivity could be higher when yields move, so the fit depends on the investor’s liquidity needs, risk tolerance, and time horizon.
Someone using tools such as an SIP (Systematic Investment Plan) Calculator or SWP (Systematic Withdrawal Plan) Calculator for broader planning may still treat zero coupon bonds as a separate fixed-income allocation rather than a substitute for every long-term product. The same applies to those who invest through SIPs in mutual funds for other goals.
Taxation of zero coupon bonds in India
Understanding the tax treatment may help you assess the post-tax returns from these investments:
- The difference between the purchase price and maturity value is treated as the investor’s gain.
- This gain is typically taxed as capital gains, although the treatment may vary depending on the type of bond.
- If held for more than 12 months, the gains may be taxed as long-term capital gains at 12.5% without indexation for listed bonds.
- If sold within 12 months, the gains may be taxed as short-term capital gains as per the investor’s income tax slab.
- In some cases, tax may be applied annually on notional gains even if no cash is received during the holding period.
How to invest in zero coupon bonds in India
Following a simple step-by-step approach may help you understand how to invest in zero-coupon bonds more confidently:
- Start by ensuring you have a demat account, as most bond investments are held in electronic form.
- Decide whether you want to invest through a primary issue or buy from the secondary market based on availability.
- Evaluate the issuer’s credit quality and review key details such as maturity, yield potential, and liquidity.
- Place your order through an exchange-linked platform or authorised intermediary, depending on the route chosen.
- Complete the payment, after which the bonds may be credited to your demat account as per the settlement cycle.
Conclusion
Zero coupon bonds are issued at a discount, carry no periodic coupon, and pay face value at maturity. This makes the return profile relatively simple on paper, although it may be important to pay attention to pricing and potential tax treatment. For investors exploring fixed-income options in the Indian bond market, these instruments may have a place when the time horizon is defined and the cash-flow pattern fits their investment needs.
FAQs
How do investors earn returns from zero coupon bonds?
They potentially earn from the gap between the discounted purchase price and the face value received at maturity.
Are zero coupon bonds safe investments?
They do carry potential risks, which may depend on the issuer’s credit quality, the bond’s liquidity, and interest rate movements.
How are zero coupon bonds taxed in India?
Tax treatment depends on the bond type, holding period, listing status, and whether it is sold before maturity or held till maturity.
Who should consider investing in zero coupon bonds?
Investors with a defined goal, fixed time horizon, and no need for periodic income may consider them.
Where can investors buy zero coupon bonds in India?
They may be available through primary issues or through the secondary market, depending on listing and market availability.
Why would anyone buy a zero-coupon bond?
Investors may consider them for long-term goals where a lump sum at maturity is preferred over periodic income.
Who issues zero coupon bonds in India?
They may be issued by government-backed institutions, corporates, and in some cases through specific notified issuances.
Which one is better, a bond or an FD?
The choice may depend on the investor’s goals, risk tolerance, and income needs, as both instruments serve different purposes. An FD offers fixed returns and more stability. Bonds are subject to market risk.
Are zero coupon bonds taxed as capital gains?
Profits are typically taxed as capital gains, although the exact treatment may vary depending on the type of bond and applicable tax rules.
